[pvrusb2] in-kernel driver & corrupt video

[Rick Immel]

pvrusb2 at isely.net wrote:
> I just got my Slackware distro installed with the 2.6.18.kernel.  I 
> copied the three driver extract files to the /lib/firmware directory 
> for my 24xxx hardware.  I plugged the hardware in and it worked, sort 
> of.  The sound  is good, but the video is corrupted  when using xine 
> or mplayer.   I haven't installed MythTV yet, but there appears to be 
> a problem with the in-kernel driver.  I tested my hardware on another 
> machine running a 2.6.17 kernel, the same firmware, and the standalone 
> driver (20060903).  This configuration presents good audio and video 
> with xine and mplayer.  Has someone else experienced this problem?
>
> Can you describe the nature of the corruption?  Is it periodic or random?  
> Is the video breaking up or are you seeing uniform distortion (e.g. colors 
> out of whack)?
>
> Starting with 2.6.18, commands to the mpeg2 encoder are determined by a 
> new kernel module, cx2341x.ko.  That should be the only substantial 
> difference.
>
> Can you try the standalone driver in your 2.6.18 and see if the situation 
> is any different?  I suspect it will be the same, but if it isn't then 
> that's another clue.  To try the standalone driver just build it as you 
> always would and simply rename the kernel-built pvrusb2.ko out of the way.
>
>   -Mike
>
I compiled and installed the standalone driver (20060924).  This solved 
the problem!

The corruption was uniform with colors out of whack and thin blue 
horizontal lines in the video.

This implies that the in-kernel driver has some problem.  Maybe its 
specific to my Slackware distro?
If there is anything more I can send you to help solve this problem, 
please let me know.

Rick Immel